DE2832459A1 - PATIENT EXAMINATION PROCEDURE - Google Patents

PATIENT EXAMINATION PROCEDURE

Info

Publication number
DE2832459A1
DE2832459A1 DE19782832459 DE2832459A DE2832459A1 DE 2832459 A1 DE2832459 A1 DE 2832459A1 DE 19782832459 DE19782832459 DE 19782832459 DE 2832459 A DE2832459 A DE 2832459A DE 2832459 A1 DE2832459 A1 DE 2832459A1
Authority
DE
Germany
Prior art keywords
density
determined
ratios
patient
displayed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19782832459
Other languages
German (de)
Inventor
Rudolf Dipl Phys Dr Rer Hauke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koch and Sterzel AG
Original Assignee
Koch and Sterzel AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koch and Sterzel AG filed Critical Koch and Sterzel AG
Priority to DE19782832459 priority Critical patent/DE2832459A1/en
Priority to FR7918462A priority patent/FR2435939A1/en
Priority to GB7925482A priority patent/GB2030698A/en
Publication of DE2832459A1 publication Critical patent/DE2832459A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
    • A61B6/5247—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from an ionising-radiation diagnostic technique and a non-ionising radiation diagnostic technique, e.g. X-ray and ultrasound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/13—Tomography
    • A61B8/14—Echo-tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
    • A61B8/5238—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for combining image data of patient, e.g. merging several images from different acquisition modes into one image
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/899—Combination of imaging systems with ancillary equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/5205—Means for monitoring or calibrating

Description

Patienten-Untersuchungsverfahren Patient examination procedure

Die vorliegende Erfindung betrifft ein Verfahren zur Untersuchung eines Patienten mittels Strahlen, wobei Verhältnisse einer Schicht eines Patienten ermittelt und auf einer Anzeigevorrichtung mit Hilfe eines Rechners zweidimensional wiedergegeben werden.The present invention relates to a method for examining a patient by means of radiation, with ratios of a Slice of a patient determined and reproduced two-dimensionally on a display device with the aid of a computer will.

In der Medizin ist man immer bestrebt, Kenntnisse über die im Inneren des Körpers eines Patienten bestehenden Verhältnisse zu erlangen, ohne daß der Patient einem operativen Eingriff unterworfen werden muß.In medicine, one always strives to gain knowledge of the conditions existing inside the patient's body without the patient having to undergo surgery must become.

In dieser Hinsicht ist es seit langem bekannt, den Körper mittels Röntgenstrahlen zu untersuchen, wobei das von einer Röntgenröhre ausgehende Strahlenbündel im Körper entsprechend den bestehenden Verhältnissen geschwächt und dann auf einem Bildschirm bzw. einem Röntgenfilm eine entsprechende Abbildung bewirkt. Dabei werden aber nur Strukturen wiedergegeben, die einen Mindestkontrast aufweisen bzw. sich in ihrer Dichte und damit der Absorption von Röntgenstrahlen entsprechend unter-In this regard, it has long been known to examine the body by means of X-rays, this being done by an X-ray tube outgoing beam in the body weakened according to the existing conditions and then on a screen or an X-ray film causes a corresponding image. However, only those structures are reproduced here Have a minimum contrast or differ in their density and thus the absorption of X-rays

909886/0188 /4 909886/0188 / 4

scheiden. Die kritische Grenze bis zu der noch Absorptionsunterschiede bei derartigen Abbildungsverfahren feststellbar sind, liegt bei 10 - 20$. Dies ist zwar ausreichend für eine Darstellung von Knochen oder von mit Kontrastmitteln gefüllten Gefäßen, jedoch nicht ausreichend für eine Darstellung von Geweben, bei denen der Dichteunterschied meist unter 5$ liegt.divorce. The critical limit up to which absorption differences can still be determined with such imaging methods is $ 10-20. While this is sufficient for one Representation of bones or vessels filled with contrast media, but not sufficient for representation of fabrics where the density difference is usually less than $ 5 lies.

In jüngerer Zeit hat man nun festgestllt, daß diese nicht direkt abbildungsfähigen Absorptionsunterschiede sich messen lassen, so daß eine indirekte Darstellung des Gewebes durchgeführt werden kann. Diese Methode hat sich unter der Bezeichnung "Computer-Tomographie" zur Untersuchung von axialen Körperschichten in die Medizin eingeführt.More recently it has been found that this is not the case directly mappable absorption differences are measured so that an indirect display of the tissue can be performed. This method has come under the designation "Computed tomography" introduced into medicine for the examination of axial layers of the body.

Desweiteren ist es seit einiger Zeit bekannt, den Körper eines Patienten mittels Ultraschallstrahlen zu untersuchen, wobei der von einem Sende-System ausgehende Ultraschall entweder nach Reflektion an der Übergangsstelle von Partien verschiedener Impedanz oder nach vollständiger Durchquerung der zu untersuchenden Schicht von einem geeigneten Empfangs-System empfangen wird. Die dabei erfaßten ¥erte werden dann z.B. über einen geeigneten Rechner einer Anzeigevorrichtung zugeführt und zur zweidimensionalen Darstellung gebracht, und zwar werden hierdurch die Dichtegeschwindigkeitsverhältnisse der zu untersuchenden Schicht festgehalten.Furthermore, it has been known for some time to examine the body of a patient using ultrasound beams, with the ultrasound emitted by a transmission system either after reflection at the transition point of parts of different impedance or after completely traversing the Layer to be examined by a suitable receiving system Will be received. The values recorded in the process are then fed to a display device, e.g. via a suitable computer and brought to a two-dimensional representation, namely the density-speed ratios of the to examining layer held.

/5 909886/0188/ 5 909886/0188

Nunmehr laß sich aber aufgrund der bestehenden Dichte- bzw. Dichtegeschwxndigkextsverhältnisse nicht in jedem Fall eine einwandfreie Diagnose stellen, und zwar, weil die erzielte Auflösung bei diesen Methoden.noch zu gering ist. Hier setzt nun die vorliegende Erfindung ein, die sich zum Ziel gesetzt hat, ein Verfahren anzugeben, mit dem eine einwandfreie Diagnose möglich ist.Now, however, due to the existing density or Density speed ratios are not always one make an accurate diagnosis, because the resolution achieved with these methods is still too low. This is where the present invention comes in, which has set itself the goal of specifying a method with which a faultless Diagnosis is possible.

Erfindungsgemäß wir-d die Aufgabe dadurch gelöst, daß einerseits durch Röntgen- oder Gammastrahlung unter Anwendung einer vom Rechner gesteuerten Abtast- und Auswerteinrichtung die Dichteverhältnisse der betreffenden Schicht ermittelt und gegebenenfalls dargestellt werden, daß andererseits durch Ultraschallstrahlung unter Anwendung eines geeigneten Ultraschall -Sende-/ und Empfangs-Systems und durch teilweise Ausnutzung der in der Abtast- und Auswerteinrichtung vorhandenen Mittel die Dxchtegeschwxndigkextsverhältnisse der betreffenden Schicht ermittelt und gegebenenfalls dargestellt werden, und daß durch in Beziehung setzen dieser beiden Verhältnisse die GeschwindigkeitsverhS-ltnisse der betreffenden Schicht ermittelt und dargestellt werden.According to the invention, the object is achieved in that on the one hand by X-rays or gamma radiation using a computer-controlled scanning and evaluation device the density ratios of the layer in question are determined and, if necessary, represented on the other hand by Ultrasonic radiation using a suitable ultrasound -Sending / receiving system and through partial utilization those present in the sampling and evaluation device Means the average speed ratios of the relevant layer are determined and, if necessary, displayed, and that by relating these two ratios the speed ratios of the relevant layer are determined and are displayed.

Vorteilhaft in diesem Zusammenhang ist, wenn durch sogenannte elektronisch Fenster neben den nicht relevanten Teilen des Dichtespektrums auch die nicht relevanten Teile des Dichtegeschwindxgkeitsspektrums eliminiert werden.It is advantageous in this context if so-called electronic windows next to the irrelevant parts of the Density spectrum also the irrelevant parts of the density speed spectrum be eliminated.

: /6 : / 6

9 0 9886/01889 0 9886/0188

/6/ 6

Unter Umständen ist es außerdem angebracht, diirch ein sogenann- / tes elektronisches Fenster die nicht relevanten Teile des Ge- schwindigkeÜb spektrums zu eliminieren.Under certain circumstances, it is appropriate also diirch a so-called / tes electronic window to eliminate the irrelevant parts of the overall schwindigke Ov spectrum.

Weitere Vorteile und Merkmale des erfindungsgemäßen Verfahrens werden nachfolgend näher erläutert.Further advantages and features of the method according to the invention are explained in more detail below.

Wie vorstehend schon angegeben, wird zur Verwirklichung des Verfahrens eine an sich bekannte als Computer-Tomographieeinrichtung ausgebildete Abtast- und Auswerteinrichtung herangezogen, womit die Dichteverhältnisse einer Schicht des Patienten ermittelt und z.B. auf einem Bildschirm dargestellt werden. Außerdem wird direkt im Anschluß an die Computer-Tomographieuntersuchung eine Untersuchung derselben Schicht des Patienten mit Ultraschall vorgenommen, wodurch die entsprechenden Dichtegeschwindigkeitsverhältnisse dieser Schicht unter Ausnutzung des Rechners und anderer für den Bildaufbau benötigter Mittel der Computer-Tomographieeinrichtung ermittelt und z.B. auf einem weiteren Bildschirm dargestellt werden. Anschließend werden die so ermittelten Verhältnisse derart in Beziehung gesetzt, daß daraus beispielsweise eine zweidimensional Abbildung der in der betreffenden Schicht herrschenden Geschwindigkeitsverhältnisse resultiert.As already stated above, to realize the Method, a known scanning and evaluation device designed as a computer tomography device is used, with which the density ratios of a layer of the patient determined and e.g. displayed on a screen. In addition, immediately after the computer tomography examination an examination of the same slice of the patient is carried out with ultrasound, making the appropriate Density speed ratios of this layer using the computer and others for the image construction required means of the computer tomography device are determined and displayed, for example, on a further screen will. Then the conditions determined in this way are related in such a way that, for example, a The result is a two-dimensional image of the speed conditions prevailing in the relevant layer.

Aufgrund der Darstellung der Geschwindigkeitsverhältnisse erscheint es gerade bei Anwendung der sogenannten Fenstertechnik möglich zu sein, z.B. durch Tumore, Karzinome etc. bedingteDue to the representation of the speed ratios, appears it is possible to use the so-called window technique, e.g. caused by tumors, carcinomas, etc.

/7 909886/01Bi/ 7 909886/01 Bi

/7/ 7

Gewebeveränderungen, die nur mit sehr geringen Dichteveränderungen verbunden sind, genau zu diagnostizieren, denn diese Gewebeveränderungen sind mit Temperaturveränderungen verbunden, die sich auf die Geschwindigkeitsverhältnis se auswirken.Tissue changes with only very small changes in density are connected to diagnose precisely, because these tissue changes are associated with temperature changes connected, which affects the speed ratio se affect.

9098 86/01889098 86/0188

Claims (2)

KOCH & STERZEL Essen, den 26. Juni I978KOCH & STERZEL Essen, June 26th, 1978 GmbH & Co. Bt/OsGmbH & Co. Bt / Os PatentansprücheClaims .)) Verfahren zur Untersuchung eines Patienten mittels Strahlen, wobei Verhältnisse einer Schicht des Patienten ermittelt und auf einer Anzeigevorrichtung mit Hilfe eines Rechners zweidimensional wiedergegeben werden, dadurch gekennzeichnet, daß einerseits durch Röntgen- oder Gammastrahlung unter Anwendung einer vom Rechner gesteuerten Abtast- und Auswert-Einrichtung die Dichteverhältnisse der betreffenden Schicht ermittelt und gegebenenfalls dargestellt werden, daß andererseits durch Ultraschall-Sende-/ und Empfangs-Syteme und durch teilweise Ausnutzung der in der Abtast- und Auswert-Einrichtung vorhandenen Mittel die Dichtegeschwindigkeitsverhältnisse der betreffenden Schicht ermittelt und gegebenenfalls dargestellt werden, und daß durch in Beziehung setzen dieser beiden Verhältnisse die Geschwindigkeitsverhältnisse der betreffenden Schicht ermittelt und dargestellt werden..)) A method for examining a patient by means of rays, wherein the proportions of a slice of the patient are determined and reproduced two-dimensionally on a display device with the aid of a computer, characterized in that on the one hand by X-ray or gamma radiation using a computer-controlled scanning and evaluation -Device the density ratios of the layer in question are determined and, if necessary, displayed; on the other hand, the density-speed ratios of the layer in question are determined and, if necessary, displayed by ultrasonic transmitting / receiving systems and partial utilization of the means available in the scanning and evaluation device , and that by relating these two ratios, the speed ratios of the relevant layer are determined and displayed. /2/ 2 909886/0188909886/0188 /2/ 2 2.) Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß durch sogenannte elektronische Fenster neben den nicht relevanten Teilen des Dichtespektrums auch die nicht relevanten Teile des Dichtegeschwindigkeitsspektrums eliminiert werden.2.) The method according to claim 1, characterized in that by so-called electronic windows in addition to the irrelevant Parts of the density spectrum also the irrelevant parts of the density velocity spectrum are eliminated. 3·) Verfahren nach Anspruch 1 und/oder Anspruch 2, dadurch gekennzeichnet, daß durch ein sogenanntes elektronisches Fenster die nicht relevanten T ile des Geschwindigkeitsspektrums3.) Method according to claim 1 and / or claim 2, characterized in that that through a so-called electronic window the irrelevant parts of the speed spectrum eliminiert werden.be eliminated. - Beschreibung -- Description - 09886/0188 /3 09886/0188 / 3
DE19782832459 1978-07-24 1978-07-24 PATIENT EXAMINATION PROCEDURE Ceased DE2832459A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19782832459 DE2832459A1 (en) 1978-07-24 1978-07-24 PATIENT EXAMINATION PROCEDURE
FR7918462A FR2435939A1 (en) 1978-07-24 1979-07-17 METHOD FOR EXAMINING A PATIENT USING COMPUTER AND ULTRA-SOUND TECHNIQUES
GB7925482A GB2030698A (en) 1978-07-24 1979-07-20 Medical diagnostic apparatus using combined X-ray and ultrasonic wave measurements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782832459 DE2832459A1 (en) 1978-07-24 1978-07-24 PATIENT EXAMINATION PROCEDURE

Publications (1)

Publication Number Publication Date
DE2832459A1 true DE2832459A1 (en) 1980-02-07

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DE19782832459 Ceased DE2832459A1 (en) 1978-07-24 1978-07-24 PATIENT EXAMINATION PROCEDURE

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DE (1) DE2832459A1 (en)
FR (1) FR2435939A1 (en)
GB (1) GB2030698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028014A1 (en) * 1979-10-29 1981-05-06 Siemens Aktiengesellschaft Tomographic device for producing transverse tomographic images

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8003355A (en) * 1980-06-09 1982-01-04 Philips Nv MEDICAL RADIATION EXAMINATION DEVICE.
FI64282C (en) * 1981-06-04 1983-11-10 Instrumentarium Oy DIAGNOSISPARATUR FOER BESTAEMMANDE AV VAEVNADERNAS STRUKTUR OC SAMMANSAETTNING
EP0081527A4 (en) * 1981-06-22 1985-11-25 Commw Of Australia Improvements in or relating to ultrasound tomography.
DE3370280D1 (en) * 1982-12-27 1987-04-23 Toshiba Kk Superposed image display device
FR2545349B1 (en) * 1983-05-04 1986-09-26 Duret Francois PROCESS FOR INPUT OF THE FORM OF HUMAN ORGANS OR PATHOLOGICAL ABNORMALITIES AND DEVICE FOR IMPLEMENTING SAME
DE4029581A1 (en) * 1990-09-18 1992-03-19 Siemens Ag METHOD FOR THE CORRECT ANATOMICAL ASSIGNMENT OF THE EXCITATION CENTERS OF BIOMAGNETIC SIGNALS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448606A (en) * 1965-10-01 1969-06-10 Magnaflux Corp Medical diagnostic system
US3547101A (en) * 1967-05-24 1970-12-15 Magnaflux Corp Medical ultrasonic diagnostic system
US3866047A (en) * 1968-08-23 1975-02-11 Emi Ltd Penetrating radiation examining apparatus having a scanning collimator
AU490105B2 (en) * 1972-06-08 1974-12-05 Commonwealth Of Australia, The 'ultrasonic echogram display' accompanied by a provisional specification
CA1050654A (en) * 1974-04-25 1979-03-13 Varian Associates Reconstruction system and method for ultrasonic imaging
US4072289A (en) * 1976-09-10 1978-02-07 Xonics, Inc. Axial tomography

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028014A1 (en) * 1979-10-29 1981-05-06 Siemens Aktiengesellschaft Tomographic device for producing transverse tomographic images

Also Published As

Publication number Publication date
GB2030698A (en) 1980-04-10
FR2435939A1 (en) 1980-04-11

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